#emc-devel | Logs for 2011-05-21

Back
[00:04:20] -!- theorbtwo has quit [Ping timeout: 258 seconds]
[00:04:25] theorb is now known as theorbtwo
[00:16:58] -!- i_tarzan has quit [Ping timeout: 246 seconds]
[00:21:35] -!- crazy_imp has quit [Ping timeout: 258 seconds]
[00:27:08] -!- michaeldexter has quit [Client Quit]
[00:42:56] -!- toastydeath has quit [Quit: Leaving]
[00:51:39] -!- capricorn_one has quit [Ping timeout: 240 seconds]
[01:16:56] -!- syyl has quit [Read error: Connection reset by peer]
[01:26:37] -!- skunkworks [skunkworks!~chatzilla@str-bb-cable-south2-static-6-78.dsl.airstreamcomm.net] has joined #emc-devel
[01:27:57] -!- tom3p [tom3p!~tomp@ip-216-36-91-237.chi.megapath.net] has parted #emc-devel
[01:41:40] -!- i_tarzan has quit [Ping timeout: 246 seconds]
[02:01:12] -!- stormlight has quit [Quit: stormlight]
[02:42:05] -!- tlab has quit [Quit: Leaving]
[02:54:49] -!- scanf has quit [Ping timeout: 260 seconds]
[03:01:35] -!- ries has quit [Quit: ries]
[03:29:31] -!- skunkworks has quit [Ping timeout: 250 seconds]
[03:36:22] -!- mozmck1 has quit [Quit: Leaving.]
[03:39:09] -!- mhaberler [mhaberler!~mhaberler@macbook.stiwoll.mah.priv.at] has joined #emc-devel
[03:39:14] -!- mhaberler_ [mhaberler_!~mhaberler@imac.stiwoll.mah.priv.at] has joined #emc-devel
[04:51:47] -!- michaeldexter has quit [Quit: michaeldexter]
[04:59:04] -!- JT-Shop has quit [Ping timeout: 260 seconds]
[05:00:22] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc-devel
[05:05:59] -!- jthornton has quit [Ping timeout: 240 seconds]
[05:06:33] -!- jthornton [jthornton!~chatzilla@216-41-156-49.semo.net] has joined #emc-devel
[05:17:34] -!- mhaberler_ has quit [Quit: mhaberler_]
[05:17:36] -!- mhaberler has quit [Quit: mhaberler]
[05:47:35] -!- HazardX has quit [Quit: This computer has gone to sleep]
[05:58:14] -!- stormlight has quit [Quit: stormlight]
[06:00:49] -!- JT-Shop has quit [Ping timeout: 248 seconds]
[06:01:25] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc-devel
[06:11:42] -!- mhaberler [mhaberler!~mhaberler@imac.stiwoll.mah.priv.at] has joined #emc-devel
[06:58:59] -!- DaViruz has quit [Ping timeout: 240 seconds]
[07:43:34] -!- Calyp has quit [Ping timeout: 246 seconds]
[07:50:37] -!- mhaberler has quit [Quit: mhaberler]
[08:27:54] -!- robh__ [robh__!~robert@5ace7019.bb.sky.com] has joined #emc-devel
[08:48:51] -!- micges has quit [Client Quit]
[09:07:31] -!- Valen has quit [Read error: Connection timed out]
[09:20:54] -!- acemi has quit [Quit: WeeChat 0.3.2]
[09:25:33] -!- Valen1 has quit [Read error: Connection reset by peer]
[09:31:15] -!- Valen has quit [Read error: Connection reset by peer]
[10:04:17] -!- cevad has quit [Quit: Leaving]
[11:01:50] -!- cncbasher has quit [Read error: Connection reset by peer]
[11:55:20] -!- nullie has quit [Ping timeout: 276 seconds]
[12:25:10] -!- syyl has quit [Ping timeout: 260 seconds]
[12:42:45] -!- mhaberler [mhaberler!~mhaberler@imac.stiwoll.mah.priv.at] has joined #emc-devel
[12:54:02] -!- mozmck [mozmck!~moses@client-173.225.233.209.dfwtx.partnershipbroadband.com] has joined #emc-devel
[12:57:04] -!- mhaberler has quit [Ping timeout: 244 seconds]
[13:08:26] -!- nullie has quit [Quit: Ex-Chat]
[13:16:37] -!- JT-Shop has quit [Ping timeout: 240 seconds]
[13:16:59] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc-devel
[13:33:45] <JT-Shop> what makes the joint/world mode show up in Axis?
[13:45:41] -!- mozmck has quit [Read error: No route to host]
[13:48:51] -!- mozmck [mozmck!~moses@client-173.225.233.209.dfwtx.partnershipbroadband.com] has joined #emc-devel
[13:58:53] -!- Tom_L has quit []
[14:06:11] -!- skunkworks [skunkworks!~chatzilla@str-bb-cable-south2-static-6-78.dsl.airstreamcomm.net] has joined #emc-devel
[14:06:14] -!- acemi has quit [Ping timeout: 260 seconds]
[14:43:00] -!- JT-Shop has quit [Quit: ChatZilla 0.9.86.1 [Firefox 3.6.17/20110420140830]]
[14:55:31] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc-devel
[15:19:47] -!- Roguish [Roguish!~chatzilla@c-67-174-215-143.hsd1.ca.comcast.net] has joined #emc-devel
[15:20:24] -!- Valen has quit [Quit: Leaving.]
[15:26:55] <jepler> JT-Shop: a kinematics with kinematics_type other than KINEMATICS_IDENTITY
[15:27:18] <JT-Shop> jepler: thanks
[16:23:45] -!- mozmck has quit [Ping timeout: 260 seconds]
[16:39:42] -!- mozmck [mozmck!~moses@client-173.225.233.213.dfwtx.partnershipbroadband.com] has joined #emc-devel
[17:03:20] -!- tom3p [tom3p!~tomp@74-93-88-241-Illinois.hfc.comcastbusiness.net] has joined #emc-devel
[17:22:52] -!- atom1 has quit [Client Quit]
[17:34:57] -!- cncbasher has quit [Quit: Visitor from www.linuxcnc.org]
[18:01:20] -!- mozmck1 [mozmck1!~moses@client-173.225.233.218.dfwtx.partnershipbroadband.com] has joined #emc-devel
[18:02:01] -!- mozmck has quit [Ping timeout: 246 seconds]
[18:47:25] -!- nullie has quit [Quit: Ex-Chat]
[19:02:26] -!- IchGuckLive has quit [Quit: ChatZilla 0.9.86 [Firefox 3.6.3/20100423140709]]
[19:03:44] -!- tsingi has quit [Ping timeout: 260 seconds]
[19:11:10] -!- Loetmichel has quit [Ping timeout: 260 seconds]
[19:13:42] -!- tom3p has quit [Read error: Connection reset by peer]
[19:17:52] -!- tom3p [tom3p!~tomp@74-93-88-241-Illinois.hfc.comcastbusiness.net] has joined #emc-devel
[19:33:24] -!- vladimirek [vladimirek!~vladimire@bband-dyn166.178-41-220.t-com.sk] has joined #emc-devel
[19:34:30] -!- acemi has quit [Changing host]
[19:35:29] <JT-Shop> do you gain anything by using gantrykins instead of just connecting both motors together in hal?
[19:36:18] <Jymmm> That's a really good question
[19:38:23] <archivist> yes, removal of any twist
[19:44:49] <JT-Shop> how does it remove twist?
[19:45:30] <JT-Shop> you can't home each side AFAIK to square the gantry
[19:45:31] <archivist> homing the two sides separately
[19:46:04] <JT-Shop> ah so you have to be in joint mode then home each side
[19:46:19] <JT-Shop> provided your real close to home I assume
[19:46:46] <JT-Shop> or have that flexibility built into the gantry
[19:48:01] <archivist> I think gantry being square to table or not catches a few noobs out
[19:52:24] -!- vladimirek has quit [Remote host closed the connection]
[19:54:52] <tom3p> i just worked on an Ingersoll gantry, the single drive and motor drove central master pulley, drove 2 timing belts, drove 2 screws.
[19:54:53] <tom3p> only 1 side had linear scale, limits & home
[19:56:14] <tom3p> screw-----belt------motor------belt------screw about 1 meter span
[19:57:32] <tom3p> the foot print of the gantry slide part was maybe 1 meter in Y direction so with a 1m x 1m carriage, there's little crabbing (35mm rails )
[19:57:46] <JT-Shop> that's the way I built my plasma table one motor jack shaft 2 timing belts one switch
[19:58:05] <tom3p> yah, no weird homing needed?
[19:58:15] <JT-Shop> no
[19:58:18] <tom3p> (one swx i spose not )
[19:58:34] <JT-Shop> I just adjust the tension of the belts to square the gantry
[19:58:59] <JT-Shop> yea, one switch for both home and limits per axis
[19:59:22] <tom3p> i didnt mount an indicator from carriage to rail to see if i could rack it, but i doubt i could
[20:03:51] -!- tom3p [tom3p!~tomp@74-93-88-241-Illinois.hfc.comcastbusiness.net] has parted #emc-devel
[20:04:10] -!- isssy has quit [Quit: Visitor from www.linuxcnc.org]
[20:33:26] -!- e-jones [e-jones!~jkastner@ip-84-242-102-36.net.upcbroadband.cz] has joined #emc-devel
[20:44:02] -!- tris has quit [Ping timeout: 258 seconds]
[21:06:57] -!- acemi has quit [Quit: WeeChat 0.3.2]
[21:36:35] -!- e-jones has quit [Quit: Ex-Chat]
[22:51:09] -!- JT-Shop has quit [Quit: ChatZilla 0.9.86.1 [Firefox 4.0.1/20110413222027]]
[22:51:35] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc-devel
[22:51:50] -!- JT-Shop has quit [Client Quit]
[22:52:26] -!- JT-Shop [JT-Shop!~chatzilla@216-41-156-49.semo.net] has joined #emc-devel
[22:55:14] -!- isssy has quit [Quit: Visitor from www.linuxcnc.org]
[22:57:25] -!- cjdavis has quit [Ping timeout: 246 seconds]
[22:58:12] <JT-Shop> so this is actually wrong in kinematics.h "KINEMATICS_IDENTITY means that the joints and world coordinates are the same, as for slideway machines (XYZ milling machines). The EMC will allow changing from joint to world mode and vice versa."
[22:58:22] <JT-Shop> or only wrong in Axis?
[23:08:19] -!- ve7it [ve7it!~LawrenceG@S0106009027972e37.pk.shawcable.net] has joined #emc-devel
[23:18:01] -!- The_Ball has quit [Ping timeout: 240 seconds]
[23:24:27] -!- n2diy has quit [Read error: Operation timed out]
[23:49:21] -!- robh__ has quit [Ping timeout: 250 seconds]
[23:54:37] <jepler> JT-Shop: that comment is trying to explain when switching between joint and world mode is permitted, depending on the kinematics type
[23:54:46] <jepler> in KINEMATICS_IDENTITY you can switch freely
[23:55:03] <jepler> in KINEMATICS_INVERSE_ONLY, you can only switch to world mode at the joint home position
[23:55:31] <jepler> this is unrelated to the question of whether and when a UI shows a distinction between joint and world modes
[23:55:47] <JT-Shop> ok, I was confused by it
[23:56:02] <jepler> they're not terribly enlightening comments, so if you were puzzled I don't blame you
[23:56:14] <JT-Shop> thanks for the explanation
[23:56:35] <jepler> "the EMC"
[23:56:38] <JT-Shop> just trying to understand a bit more about gantry configs